Temperature-changing device for cars



C. M. GAY. TEMPERATURE CHANGING DEVICE FOR GARS.

APPLIUATION FILED 00T. 27, 1910. Batented Feb. 21

4 SHEETS-S www.

e. M. GAY. Y TEMPERATURE CHANGING DEVICE POR CARS.

APPLICATION IILBD 00T.27, 1910.

Patented Feb. 21, 1911.

4 SHEETS-SHEET 2.

C. M. GAY. TEMPERATURE CHANGING DEVICE FOR CARS.

. APPLICATION FILED 00T. 27, 1910. 984,553.

4 SHEETS-SHEET 3.

WTNESSES Patented Feb. 21, 1911.

C. M. GAY. TEMPERATURE CHANGING DEVICE FOR CARS.

l n APPLICATION FILED 00T. 27, 1910. 984,553. Patented 11911.21, 1911 4 SHEETS-SHEET 4. m

gboooooooooo o Ooooooom l Huw- Arial-uf] s UNITED sTATEs PATENT oifiaicia.A

Cassius iconv, 0E Los ANGELES, CALIFORNIA.

TEMPERATURE-CHANGING DEVICE EOE CARS.

To Iall whom it may co-rwcr'n:

Be it known that WI, Cassius M. GAY, a

- citizen of the United States, residing at Los A Angeles. in the county of Los Angeles, State of California, have invented certain new and useful Improvements in Temperature- Changiiig Devices for Cars, of which the following is a description, reference being had to the accompanying drawing and to the letters and figures of reference marked thereon. q

- The invention rela-tes to new and 'useful' improvements in teiiipei'ature changing devices for fruit cars,- and more especially to a `Arefrigeratiiig device or apparatus for precooling the refrigerator cars, although it is obvious that from certain aspects, the invention is equally adapted for the pre-heating of the car.

An object of the invention to provide devices connected to the chambers of the temperature changing device which may be quicklyad] usted and connected to cai's without requiring any special spotting of the cars relative to the temperature changing device.

A further object of the invention is to provide devices for connecting the temperature changing device orapparatus to the car wherein it is desired to change the temperat-ure, which devices .are so constructed that the air current through the car may be readily controlled and the direction thereof changed.

A further object of the invention is to pro-l vide air ducts for connecting the temperature changing device withth'e cai', which' air ducts include laterally extending parts, together with trolley mechanism for supporting the outeraend of said laterally extending parts. i

' further object of the'invention is to provide air ducts for connecting a temperature changing device with a car, which air ducts are made iii sections adapted to swing one relative to the other, together with a liquid seal for closing the pivotal connection.

A further object of the invention is to provide an air duct connecting the temperature changing device to the car, which air duct has at its-outer end an extensible bellows connection for coupling the airiduct with the CHI'.

A further object of the invention is to.

di e Specification of Letters -Patent. Iatnfd Feb. 2,1, i.

-Appiication med Vmaaier 27, 1910s serial no. 589,485.

l from the refrigerating device lto the car, i

which air ducts are provided with valves for reversing the current of air through the car and which val-ves are controlled by mecha; nisin capable of being operated from the icing platform.

These and other objects will in part be obvious and will in part be hereinafter more fully described. l

.Inn the drawings which show by way of illustration one embodiment of the invention Figure 1 is a sectional view through they re. frigerating device and a portion of one of the air ducts. showing also the relation of the refrigeratiiig devicev to the cars to be precooled, the connecting .air ducts and the supports for the saine. Fig. 2 is a side View of my apparatus with the support for the air ducts in section. Fig. 3 isa. sectional view platform showing the valves and the controlling mechanism therefor.

tween the laterall)r extending sections of ing the air duct. Fig. 5 isa'detail showing the valve controlling crank. Fig; 6 is a debellows in adjusted positions.

`pre-cooling of refrigeratingcars. and I will therefore first, describe my apparatus as used for this purpose:

In carryingout my inveint-ion.. I have provided as herein shown, a refrigerating device 1. which consists of a` high pressure duct 2 and a low pressure duct 3, separated by a partition 4. On top .of the"refrigerat prior Patent- #940.590. dated November 16,

in this connection. On each side of thei refrigeratiiig device and icing plattform, is a track 6, and 7. on which cars 8 and 9 may be placed respectively for the purpose of pre-cooling.

My device is especially adapted for us'eiil connection with the pre-cooling of refrigeraare provided with ice bunkers at each .end thereof'. in which ice is to be stored after the cai' has been thoroughly pre-cooled.

As herein shown, I have provided *my re'- frigerating apparatus with four air duets 10. 117 12 and 13 (see Fig. 2v). It is obvious th air duct, and the means for supporttail showing the ratchet. har for holding the My invention is especially adapted for the ing device. is an icing platform 5. These. parts are fully shown and described in myv through one of the air ducts andthe .icing l Fig. 4v is a y detail showing the pivotal coi1iiectioi`ibeaoV 1909.- and will not, need further description tor ca rs. of a well known construction, which however, that the refrigerating device may be extended and any lnumber of air ducts used. The air ducts and 11 extend down through 4both the pressure chamber and the vacuum chamber, andare adapted to be connected Iat their outer ends to each end ofthe car to be pre-cooled,. whe1'eby a circulation of the pre-co`oled air may b'e caused to pass through/ the car. The air ducts 12 and 13 are adapted for a connection with each end of a car located on the other side of the refrigerating device. Each of the air 'ducts .is similar in constructionl and therefore, a

description ofI one of Said air ducts will a.nswer for all. The air duct 10 consists of a short section, o/fcast iron pipe 14, which is mountedin 'the icing platform 5( (see Figs. l and l3) and projects a short distance above the same. The gbjectof using a heavycast Iiron pipe in this ypart ofthe -air duct 1s to .prevent said ail-,duct from being broken or bent by the movement of blocks of ice on the icing platform. i

Anextension lextends down through the high pressure chamber 2- and through the' partit-ion4' so that the air duct is connected with the vacuum chamber 3. At the lower end of the air duct 15, I have'provided a f x -bracket 16, which servesfto guide and sup- K w port a valve `1'2 which closes the lower end of the air duct, f IA stem18 is threaded .in a nut 19 carried by the valve 174 and extends outwardly distance.

through the bracket 16 so as `to guide the valve in its movements. The stem 18 also extends through the valve and through-a suppbrtingbearing 20 carriedat the end of the air duct up'into the air duct a short A spring 21 surrounds the stem 18 and bears against the bracket I16 at one end, While at its other end said spring ven? gages the nut 19. The. spring normally holds the Valve seated against the end of the 'l air duct. lTheeztension 15 ofthe air duct 10 is provided with .a laterally extending portion 22, connecting with the pressurechamber 2, which carries a bracket 23 housthe stem 25 normally holds the yvalve 24.. closed. The stem`25 also passes through a ing and guiding'a valve 24 which is similar in construction to the valve 17. Y The stem 25 connected with'the valve 24'is guided in the bracket 23 and the spring 26 surrounding bearing' 27 carried by the end of the lateral extension`22. and extends, a short distance into the air duct. As a means for operating the valves 17 and 24, Ihave provided a rock d lever 28 which is pivoted at 29 to a bracket 30 mounted/on the airV duct. The stem 25. is provided with" a roller 31 which is pesiy tioned'so as to rest light-ly against the rock lever 28'when the valve is closed. The valve stem 18 is also provided with asmall roller adaptedto rest lightly aga-inst the rock lever 28r\when'the' valve 17 is closed. When the vacuum chamber.

rock lever isi'n the position shown in Figs. l and 3, bot-h vof the valves 17 and 24 will be closed. AThe rockr lever 28 is connected by .a link 33 to a crank arm 34 carried bya crank" shaft mounted in bearings 36 threaded into the cast iron section 14 of the airA duct. '.Packing sleeves 3T are threaded `finito the rock shaft 35 in order to vforni an air tight connection between the bearings 36 and the` rock shaft The roekshaft 35 carries at its outerend al crank handle 38,

by means of which the rock shaft 35 mayv be oscillated and. through the link 33, thev rock lever. 28 moved about its fulcrum. The lcrank handle 38 is disposed above the icing ment with the roller 31, thus forcing the valve stem 25 and the valve 24 outward so as to open the air duct to the upper or high pressure chamber. The, other arm of the rock lever 28 will `inove away from the roller carried by the valve stem 18 so that there will be no movement of the valve 17. lVhen they crank handle 38 is moved in the opposite direction beyond the central position shown in Fig. 5, the valve 17 will be opened in a like manner, and the Valve 24 closed, thus opening the air duct to the low .pressure cr l The air duct 10 above the cast iron section 14, 'may be of any light upper end. ySaid vertical section 39 `is rotatably connected with the cast iron section 14. Said connection consists of a `double pipe construction covered if desired with a .suitable insulatingmateriah Said air duct consists of aivertic'al section 39 which carries a lateral horizontal section 40 at its 'l flange 41 at the upper end of thecast iron section14, `which double flangeV forms pocket extending entirely around theup er end of the section 14, and a Collar 42 which is vSecured to the lower end of the vertical ssection 39. nSaidcollar 39 rests on the upper .edge of the cast iron section 14 and has a lip -43 which extends downwardly into the pocket formed by the double flange 41. This pocket is adapted to be filled with oil or any othervsuitable liquid seal, so as to prevent the air fromv escaping through the connection between the 'sectionsof the pipe 39 and ,14. The weightof the upper Section of the i lpipe will hold the sect-ionsltogether so that in practice I find that no other means is necessary fdr supporting themparts att-his point.

i As a means for supporting the outer end of the horizontal section 40, so that it may be freely swung about-the axis of a vertical pipe 39, I have provided the overhead structure 44, which carries a track suspended therefrom, in any desirable way. The track is curved about a center lying substantially in the axis of the vertical pipe 39. A yoke 46 is pivotallyT connected to the outer endv of the horizontal extension 40, and has auniversal connection at its upper end with a trolley wheel 4T adapted to engage the track 45. The air duct is provided with a second lateral extension 4S, which is rotatably connected at its upper end with the horizontal section 40 above referred to. The horizontal section 40 is deflected downwardly at -its outer end, and tlie horizontal section 48 is deflected or bent upwardly at` its upper end, so thatl the pivotal connection between the parts is disposed so that said parts have a relative movement about a vertical axis. The section 48 is provided with a collar forming a pocket 49 at its upper end, which receives aprojecting lip 5() carried by acollar 51 on the outer end of the section '40. The pocket. 49 is adapted to be filled with`oil or some similar liquid in order to provide a liquid seal to prevent the escape of air through the pivotal connection.

A bracket 52 is secured to the collar forming the pocket 49, and extendsover the 'collar 51 carried by the horizontal section 40. The yoke 4G lis pivoted to the bracket 52. Said bracket 5:? serves asa means therefore, for supporting the section 4S, and holding the same in contact with the section 40, and also as ameans for supporting the outer end of the section 40. r[he outer end of the extension 4S is also supported by the trolley 4T and track 45 through the brace rod 53, which is pivotally connected to a collar 54 attached to the horizontal section 48, near its outer end. The horizontal section 48 of the air duct. carries a downwardly extending vertical projection 55 to which is attached at its lower end a bellows or extensible connection 56. Said bellows carries a seat-ing ring 57 at its lower end. which is adapted to fit tightly .-theopening in the top of the car leading to` the ice bunker. Said bellows constructionv will allow the seating ring 57 to be tilted so as to conform to the inclination ot' the top of the car. Ratchet bars 58 are pivotally, connected with the seating ring 5T, and extend through eyes 59 carried by the supporting collar at the lower end of the vert-ical section Said ratchet bars may be detachably connected with the supporting eyes 59 in any well known manner and will serve as means for holding the bellows in collapsedposition when desired.

T he operation of mv device will be obvious from the above description. The cars., are run along-side of the refrigeratmg device, and do not need any special spotting relative to the refrigerating device, owing to the swinging sections in the air duct. The air duct l() is connected to one end of the car and the air duct 11-` is connected to thev other end of the car. In connecting the air ducts. the horizontal section 40 may be quickly swung about its pivotal section,with the section 14 and likewise the horizontal section 4S may be quickly swung about its pivotal connection with the section '40. It will readily be seen with the two connections, l the vertical section 50 may be quickly7 placed over the opening in the ice 'bunker and adjusted to various positions,so as to register with said opening. By this swinging connection between the parts, I have avoided entirely the use of telescoping sections which are difficult to manipulate, and are liable to get out of order, and to leak. The seating ring is also v-*ery'ireadily attached to the opening in the ice bunker. Then the seating ring is detached from the car, the bellows may be collapsed and held in collapsed position by the ratchet bars, so that the vertical section 55 of .the air duct will swing over the icing platform. After the air .ducts have been connected with each end of the ca r, the controlling valves 17 and 24 are manipulated so as to connect the high pressure duct with one end of the car, and the vacuum duct with the other end of the car. I fA itis desired to reverse the air current through the car, when pre-cooling the same. the valves may be quickly manipulated by swinging the crank handle, so as to reverse the air current.

In order to prevent the valves from royrating, I have provided the valve stem with to. pre-heat a. car in order to prevent the fruit contained therein from being chilled during transportation. In order thatl this may be accomplished. all that is necessary is to pass a heating medium through the pipes contained in the/device l, and the temperature of the air in said device will be raised above the normal temperature of the'atmosy phei'e and the circulation of air through the heating device and the car. will quickly preheat the contents of the car. It will readily z be seen that this change in the use of my device Inay bemade withoutin any way varying or altering the construction of my appat plieric temperature of cars, including in combination a temperature changing device having a pressure duct, and a vacuum duct, air ducts adapted to connect said temperature changing Ydevice with the car wherein tithe temperature is to be changed, each of said air ducts having openings leading to the pressurer duct, and to the vacuum duct,

valves for controlling said openings and means for operating said valves. p

Q. An apparatus for changing the atmospheric temperature of cars including a telnperature changing dev-ice having a pressure duct,fa vacuum duct,V air ducts adapted to connect said temperature changing device with the car wherein the temperature is to be changed, each of said air ducts having openings leading to the pressure duct and to -30 the vacuun duct,'valves for controlling said openings` independent vielding means for v closing the valves and common means for opening one of the other of said valves.`

3. 4An apparatus for changing theatmospheric temperature of cars, including a temperature changing device lia-vinga pressure duct, and a vacuum duct, air ducts adapted to connect said temperature changing device with the car wherein the temperature is A -10 changed, each of said air ducts living open-` ings `leading to the pressure dlict and to the vacuum' duct, valves for controlling said openings, independent yielding means lfor' Aclosing the valves, a rock lever adapted to engage one or the other ofsaid valves for o enin 'the same and means for o eratinosaid rock lever.

4. An apparatus for pre-cooling cars, iiicluding in combination a refrigerating device, having a pressure duct, and a vacuum L uct. an icing platform arranged abve said refrigerating device, air ducts extending through said platform, and into said pressure duch. and said vacuum duct, said air ducts having-'means forconnection with a .car tohe pre-cooled` each of said air ducts having openings leading to the pressure duct and the vacuum duct, valves for'eont-rolling said openings, and means voperable from-the icing platform for controlling saidl valves.

5. .An apparatus for pre-cooling cars including in combination, a refrigerating device having ay pressure duct and a vacuumduct, an icing platform arranged above said refrigerating device,A 'air ducts'- extending through said platform, and into said pressure duct and said vacuum duct, said air ducts having means for connection with a car to be pre-cooled each of said air ducts having openings leading to the pressure 70 duct, and the vacuum duct, valves for controlling said openings, springs for normally holding said valves closed, a roel: lever adapted to open one or the other of said valves, means for operating said rock lever 7 from the icing platform and for holding the same in various adjusted positions.

G :ln-apparatus for changing the atmospheric ftemperaturel of cars including in combination, a temperature changing device having a pressure duct and a vacuum duct, air ducts adapted to connect said temperature changing device with the car ivlierein the temperature is to be changed, each of said air ducts having openings leading to S the pressure duct. and to the vacuum duct, valvesfor controlling said openings, means for operating said valves. each of said air ducts also includinga vertical sectional pipe constructed so that one section may rotate relative to the other. and a lateral extension adapted to be connected to the cai'.

7. An apparatus for changing the atmospheric temperature ot cars including in combination, a temperature changing device havingV a pressure duct and vacuum duct, air chiots adapted to connect said temperature changing "device with the car wherein 'the temperature is to hev changed, each of said air ducts having openings leading to the pressure duct. and to thegv/acuum duct, valves for controlling said openings, ,means for operating said valves, each of said air `ducts also including a vertical sectional pipe constructed so that one section may rotate relative to the other, said rotating section having a lateral extcnsionadapted to be connected to the car, and means for supporting the outer end of said lateral extension.

S. An apparatus for changing the teinperature of cars including in combination, a, temperature changing device having a ypressure duct,and a vacuum duct, air ducts adapted to connect said temperature changing device with the car wherein the temperature is to be changed, openings leading to the pressure duct and to the vacuum duct, valves for controlling said openings. means for'operatingr said valves, each ot' said air ducts including a vertical section, a. hori-I zontal section rotatably attached to said vertical section. a second horizontal section rotatably'attached to said first horizontal section so as to rotate relative thereto` about a vertical axis, and means for supporting` l` the outer ends of each of said horizontal sections. f V

9.1An apparatus`for changing the teinperature o1 cars including in'combination,

4a temperature changing device, air ducts 130 leading-tl1erefrom, each of said air ducts gomprislng a horlzontal section adapted to swing in a horizontal plane, a track curved substantially about a center located inthe -ixis around which said horizontal section iwings, a trolley cooperating with said track, ind means'for connecting said trolley to the )uter end of said horizontal section.

10. An apparatus for changing the temperature of cars, including in combination a temperature changin device, air ducts leading `therefrom', comprising a vertical section, a horizontal section rotatably attached to said vertical section, a second horizontal section rotatably attached to said iirst horizontal section so as to rotate relative thereto about a vertical axis, a circular track mounted above said horizontal sections and curved about the :enter of said vertical section, a trolley adapted to cooperate with said track, a yoke for connecting said trolley to the outer end of said first horizontal section, and a brace rod for connecting the trolley with the outer end of said second horizontal section.

11. An apparatus for pre-cooling cars, including `in combinationy a refri erating Adevice, an icing platform locate above said refrigerating device, an air duct extending from said refrigerating device up through said platform, said air duct comprisin a cast iron section mounted in the icing platform and extending above the same, a rotatable section secured to -said cast iron section, said rotatable section including a horizontally extending portion, and means for connecting said horizontally extending portion to the car to be pre-cooled. 1

12. An apparatus for changing the temperature of cars, including in combination a `temperature changing evice, air `ducts for connecting said temperature changing device with said car wherein the..ten1pera ture is-to be changed, each of said air ducts comprising a pipe formed in sections, one of which is rotatable relative to the other about a vertical axis, said lower section having spaced annular flanges at its upper end forming a pocket to receive a liquid, and said upper section having a depending flange adapted to extend into said pocket whereby a liquid seal is formed.

13. An apparatus for changing the ternperature of cars includingin combination a temperature changing device, an air duct adapted to connect sald temperature changing device to the car wherein the temperature is to be changed, said air duct having at its outer end a collapsible bellows, a seating ring lcarried by said bellows and adapted to engage the opening leading to the ice bunker 1n the car. y

14:. An apparatus for changing the temperature of cars, including in combination a temperature changin device, an air duct adapted to connect sai temperature changing device to the car wherein the tempera-` v ture is changed, saidl air duct having at its outer end a collapsible bellows, a seating ring carried'by said bellows and adapted to A engage the opening leading to the ice bunker in the car, and means for holding said bellows in adjusted positions.

15. An apparatus for pre-cooling cars, including in combination a refrigerating device, an ice platform located above said refrigeratiug device, air ducts for connecting said refrigerating device to the cars to be precooled, said air ducts including a vertical section, horizontal sections, and a vertical section carried b the outer endof said horizontal end, a bel ows adapted to connect said 

